Essays Tagged: "Test tube"

Techne in a Brave New World by Huxley, an essay about the ballance of technology and humanities - with referances to Brave New World and different articles

are manufactured on an assembly line and put into a social class while they are still embryos in a test tube. As children they are engineered to be content with their rank in this world where love, v ...

(2 pages) 195 0 3.7 Aug/1996

Subjects: Literature Research Papers > Creative Writing

Freezing point of Napthalene

seTo determine the freezing point of a known substance, naphthaleneII. Materialsringstand gas sourcetest tube test tube clampsthermometer naphthaleneBunsen burner goggleshose stopwatchIII. Procedure1. ... to a gas source.2. Assemble the ring stand so that a ring clamp is attached to the stand holding thetest tube that will be used in the experiment.3. Fill the test tube to approximately 1/8 capacity wi ...

(2 pages) 26 0 4.0 Jan/1996

Subjects: Science Essays > Chemistry

A basic short story containing all the necessary elements of literature.

missed the bus. Finally getting up he trips over a stuffed animal and lands on one of his precious test tubes. He realized that he had hit the test tube and a sharp pain went through his body making ... this was wasting time. His parents were both scientists and that what he would be. Carl ran to his test tube collection to see what damage had occurred this morning. His collection was safe and then ...

(5 pages) 73 0 5.0 Jul/2003

Subjects: Literature Research Papers > Creative Writing > Poems & Short Stories

Investigation of the effect of the mass of Zinc, on the temperature change of a Copper Sulphate solution

ate solution (CuSO4) in a measuring cylinder, for precise accuracy, and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube, for minimum heat los ... will then measure the starting temperature using a thermometer. Next I will pour the Zinc into the test tube containing CuSO4.3.Finally I will measure the final temperature using a thermometer and re ...

(5 pages) 25 0 3.0 Jan/2004

Subjects: Science Essays > Chemistry

Infertility and Religion

from the ovary and united with a sperm. This union, which is called fertilisation, takes place in a test tube in a laboratory which provides correct conditions for fertilisation. If the fertilisation ...

(6 pages) 53 0 5.0 Feb/2004

Subjects: Social Science Essays

The effect of the halogen atom on the rate of hydrolysis

sliver precipitate in silver nitrate solution.Hypothesis: I think that 1-iodobutane will be the fastest to react followed by 1- bromobutane and then by 1-chlorobutane. This is because 1-iodobutane ha ... ree and I think that this will make it easier for it to react with the silver nitrate.Method. Three test tubes will be placed in a test tube holder. Into each test tube 1 cm" of ethanol will be added. ...

(2 pages) 26 0 4.0 Mar/2004

Subjects: Science Essays > Chemistry

Biology A level planning experiment of effect of lead ions on amylase

fect reversible or irreversible, which is put on the amylase.MethodApparatus and substances requiredTest tube holder 2% starch solution6 boiling tubes labelled 1 to 6 1% lead nitrate solution6 test tu ... ling tubes labelled 1 to 6 1% lead nitrate solution6 test tubes labelled A to E, ( F) Dimple tiles5 test tubes labelled A1, B2, C3, D4, E5, (F6) 5 ml syringe1% Amylase solution 4 dropping pipettesStop ...

(6 pages) 34 0 2.5 Mar/2004

Subjects: Science Essays > Biology

Permeable membranes lab /iodine and vegetable oil

bag will allow the iodine or starch to diffuse across the plastic "membrane". The hypothesis being tested is if the bag will allow the iodine to travel across the membrane and if it will react with t ... the Ziploc bag.Procedure1. Pour 25 mL of iodine into beaker2. Fill about 1/3 of the test tube with Starch solution and place in beaker (DON'T POUR OUT!!!!)3. Pour 25 mL of star ...

(1 pages) 38 1 4.6 May/2004

Subjects: Science Essays > Biology


d plant leaf according to the Rf values.PROCEDURE/APPARATUS: The equipments used were a 18 x 150 mm test tube with stopper, graduated cylinders, Erlenmeyer flask, mortar and pestle, metric ruler, tall ... er, graduated cylinders, Erlenmeyer flask, mortar and pestle, metric ruler, tall jar, acetone, tiny test tube, small brown bottle, petroleum ether, plant leaf, dried parsley flakes, water, glass petri ...

(2 pages) 44 0 3.0 May/2004

Subjects: Science Essays > Biology > Plant Biology

Types of hemical reactions - Practical Report-(Refer to word document for subscripts,tables and correct characters.)

investigate, discuss and identify several different types of chemical reactions through a series of tests and observations.Decomposition of a carbonate by heatingApparatus:SpatulaBunsenTest tube (x2)C ... ions.Decomposition of a carbonate by heatingApparatus:SpatulaBunsenTest tube (x2)Copper (II) carbonateStopper and delivery tubeLimewaterProcedure:1. Place a spatular of Copper (II) carbonate (CuCO2) i ...

(7 pages) 40 0 1.0 Jun/2004

Subjects: Science Essays > Chemistry

BioTechnology Essay

A. PCR is used when the source of DNA is insufficient or tainted. The initial DNA is incubated in a test tube with a heat-resistant type of DNA polymerase, a supply of all 4 nucleotides and primers. T ...

(3 pages) 62 0 5.0 Jun/2004

Subjects: Science Essays > Biology

Osmosis Investigation

o the highest level of accuracy - (2 d.p.)· I then measured the chips in mm· I took 3 test tubes, for the chips A, B & C· and filled each with 10cm3 of 1 molar sucrose· ... d filled each with 10cm3 of 1 molar sucrose· I then inserted the correct chip in the correct test tube,· and started the timer.· Every 5 minutes I...a. removed the sucrose & c ...

(3 pages) 42 1 2.7 Jan/2005

Subjects: Science Essays > Biology

Beetroot cell membranes

will stay the same, i.e. if having a bigger beetroot sample less pigments will be released into the test tube at lower temperature, or having a smaller beetroot sample more pigment will be released in ... pH is stable (constant) and only the temperature varies this is to be done by using buffer in every test tube so as to maintain pH balance for each beetroot sample and insure that pH does not become a ...

(4 pages) 31 0 0.0 Feb/2005

Subjects: Science Essays > Biology

Insulation Experiment

Why will insulators affect how long a test tube of hot water stays hot?Background InformationI know that there are many different ways of ... water stays hot?Background InformationI know that there are many different ways of insulating this test tube, shiny foil can be used because it's a poor emitter of radiation and it will reflect escap ... internet, that the polystyrene will be the best in insulator. I will have to bung up the end of the test tube as well because heat will be lost by convection currents. By keeping the test tubes well i ...

(8 pages) 21 0 5.0 Mar/2006

Subjects: Science Essays > Physics

Invitro Fertilization Report

ertilisation refers to the process in which the fertilization of an egg by a sperm takes place in a test tube as opposed to the mother's fallopian tube.There are six major steps involved in Vitro Fert ... vagina to the follicles of the ovary. From there, the eggs and follicle fluid are aspirated into a test tube and sent to a laboratory to examine the fluid for eggs.3) Sperm CollectionShortly after th ...

(4 pages) 24 0 0.0 May/2006

Subjects: Science Essays > Biology


re the rate when underwater.* Metre Ruler- To simply measure distance between 0-100cm.* Cold Water* Test Tube* Clamp* BeakerMethod:1. Setup the water weed in the first tube facing the lamp's direction ... ght from elsewhere.4. Make a table, with "number of bubbles per minute", against distance away from test tube (cm).5. Pour in the water from the beaker to the beak of the test tube.6. Turn on the lamp ...

(3 pages) 43 0 3.0 Nov/2006

Subjects: Science Essays > Biology


e fact that one of them was actually born from a mother and father, while the other was born from a test tube. So is cloning ethical or is it "playing God" as some would say it?Many people have differ ...

(4 pages) 56 2 4.5 Nov/2006

Subjects: Science Essays > Genetics & Genome Projects

Enzyme Function Lab, explores the role of enzymes in chemical reactions

little warmer, but the difference in temperature was hardly distinguishable by simply touching the test tube. The reaction lasted about 10 minutes.4. a) The hydrogen peroxide is used up and the manga ... ng organisms.Hypothesis/predictionsWe thought that the level of intensity and heat in the different test tubes would go in this order from greatest to least: raw liver, raw hamburger, boiled liver, po ...

(3 pages) 80 0 0.0 Dec/2006

Subjects: Science Essays > Chemistry

Effect of pH on Protein Digestion

sis: I predict that since pepsin breaks down the material the quickest at a pH of 2 in the stomach, test tubes #3 will reduce the greatest because it has pepsin to further break down the egg. Whereas ... #3 will reduce the greatest because it has pepsin to further break down the egg. Whereas the other test tubes will have a smaller reduction. I think test tube #2 will have the second largest reductio ...

(2 pages) 35 0 2.0 Feb/2007

Subjects: Science Essays > Biochemistry

Heating Lead Nitrate

ing Lead Nitrate (Pb(NO3)2.Method About three spatulas full of Lead Nitrate was poured into a small test tube. The Bunsen burner was lit in the usual way and set to the hottest flame. Using a test tub ... e Bunsen burner was lit in the usual way and set to the hottest flame. Using a test tube holder the test tube was carefully positioned about five centimetres above the bases of the flame. The experime ...

(1 pages) 7521 0 0.0 Nov/2001

Subjects: Science Essays > Chemistry